This document provides a five-band+ GPS Antenna design; this simulation is for wireless LAN.
The application shall apply for antenna unit which shall be used for AVL or Fleet Management antenna systems. The combination of High Gain GPS antenna and a low profile covert GSM antenna is highly ideal for these applications that require durability, small in size, covert installation and rugged construction.
| Physical Condition |
| Construction |
Polycarbonate- radome at top, die-cast shell at bottom/ rubber gasket for water seal in between |
| Dimension |
44.8mm (L) x 44.8mm (W) x 14.3mm (H) |
| Weight |
50 grams (excluding cable & connector) |
| Environmental Conditions |
| Operation temperature |
-40°C to +85°C |
| Storage temperature |
-40°C to +100°C |
| Relative Humidity |
95% non-condensing |
| Cable & Connector |
| Cable |
5 meter RG174/U (standard) cable, other length available |
| Connector Available |
BNC,TNC,FME (to be adapted), GT5, MCX (OSX), SMA, SMB or SMC in straight or right angle |
| Optional Adapters |
Universal Connector Adapter (FME to TNC/BNC/SMA/SMB/MCX) |
| Antenna Element |
| Center Frequency |
1575.42 MHz +/-1.023MHz |
| Polarization |
R.H.C.P. (Right Handed Circular Polarization) |
| Absolute Gain @ Zenith |
3 dBic Typ. |
| Gain |
90° : 2.0dBi min.
20° : -5.0dBi min.
Mounted on the 60mm x 60mm square ground plane |
| Axial Ratio |
90° : 3 .0dB max.
Mounted on the 60mm x 60mm square ground plane |
| Low Noise Amplifier |
| Center Frequency |
1575.42 MHz +/- 1.023 MHz |
| Gain |
28+/-4.5dB |
| Bandwidth |
10 MHz min. @S11λ-10 dB |
| Noise Figure |
1.5dB Typ. |
| Filter |
25dB @ fo± 50MHz
35dB @ fo± 100MHz
* fo=1575.42MHz |
| Supply Voltages |
2.5 ~5.5V DC |
| Current Consumption |
2.5V : 6.6mA Typ.
3V: 8.6mA Typ.
4V: 12.6mA Typ.
5V: 16.6mA Typ. |
| Output Impedance |
50 ohm |
| Output VSWR |
2.0 max. |
| Overall Performance (Antenna Element, LNA & Cable) |
| Frequency range |
1575.42 +/- 1.023 MHz |
| Gain |
At 90° 30 ± 4.5dBi-(cable loss) Note:1
Mounted on the 60mm x 60mm square ground plane |
| Output Impedance |
50 ohm |
| VSWR |
2.0 max. |
